# Coral Sr/Ca Data of the Red Sea over the last 25 years #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. # If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with '#' followed by a space # Data lines have no '#' # # NOAA_Landing_Page: https://www.ncdc.noaa.gov/paleo/study/34393 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-coral-34393.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Corals and Sclerosponges # # Dataset_DOI: # # Science_Keywords: #--------------------------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/coral/indian_ocean/murty2018/murty2018-mb.txt # Data_Download_Description: NOAA Template File; Maghabiyah Sr/Ca Data # #--------------------------------------- # Contribution_Date # Date: 2021-10-13 #--------------------------------------- # File_Last_Modified_Date # Date: 2021-10-18 #--------------------------------------- # Title # Study_Name: Coral Sr/Ca Data of the Red Sea over the last 25 years #--------------------------------------- # Investigators # Investigators: Murty, S.A.; Bernstein, W.N.; Ossolinski, J.E.; Davis, R.S.; Goodkin, N.F.; Hughen, K.A. #--------------------------------------- # Description_Notes_and_Keywords # Description: This study contains coral geochemical data from 5 sites: SC = Semicolon; P = Popponesset; AG = Abu Galawa; CG = Coral Gardens; MB = Maghabiyah #--------------------------------------- # Publication # Authors: Murty, S. A., Bernstein, W. N., Ossolinski, J. E., Davis, R. S., Goodkin, N. F. and Hughen, K. A. # Published_Date_or_Year: 2018 # Published_Title: Spatial and Temporal Robustness of Sr/Ca-SST Calibrations in Red Sea Corals: Evidence for Influence of Mean Annual Temperature on Calibration Slopes # Journal_Name: Paleoceanography and Paleoclimatology # Volume: 33 # Edition: # Issue: # Pages: 443-456 # Report_Number: # DOI: 10.1029/2017PA003276 # Online_Resource: # Full_Citation: Murty, S.A., Bernstein, W.N., Ossolinski, J.E., Davis, R.S., Goodkin, N.F. and Hughen, K.A., 2018. Spatial and temporal robustness of Sr/Ca-SST calibrations in Red Sea corals: Evidence for influence of mean annual temperature on calibration slopes. Paleoceanography and Paleoclimatology, 33(5), pp.443-456. # Abstract: Sr/Ca ratios recorded in the aragonite skeleton of massive coral colonies are commonly used to reconstruct seasonal- to centennial-scale variability in sea surface temperature (SST). While the Sr/Ca paleothermometer is robust in individual colonies, Sr/Ca-SST relationships between colonies vary, leading to questions regarding the utility of the proxy. We present biweekly-resolution calibrations of Sr/Ca from five Porites spp. corals to satellite SST across 10° of latitude in the Red Sea to evaluate the Sr/Ca proxy across both spatial and temporal scales. SST is significantly correlated with coral Sr/Ca at each site, accounting for 69–84% of Sr/Ca variability (P « 0.01). Intercolony variability in Sr/Ca-SST sensitivities reveals a latitudinal trend, where calibration slopes become shallower with increasing mean annual temperature. Mean annual temperature is strongly correlated with the biweekly-resolution calibration slopes across five Red Sea sites (r2 = 0.88, P = 0.05), while also correlating significantly to Sr/Ca-SST slopes for 33 Porites corals from across the entire Indo-Pacific region (r2 = 0.26, P < 0.01). Although interannual summer, winter, and mean annual calibrations for individual Red Sea colonies are inconsistently robust, combined multicoral calibrations are significant at summer (r2 = 0.53, P « 0.01), winter (r2 = 0.62, P « 0.01), and mean annual time scales (r2 = 0.79, P « 0.01). Our multicoral, multisite study indicates that the Sr/Ca paleothermometer is accurate across both temporal and spatial scales in the Red Sea and also potentially explains for the first time variability in Sr/Ca-SST calibration slopes across the Indo-Pacific region. Our study provides strong evidence supporting the robustness of the coral Sr/Ca proxy for examining seasonal to multicentury variability in global climate phenomena. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Singapore Ministry of Education # Grant: #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Research Foundation Singapore # Grant: NRFF-2012-03 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: U.S. National Science Foundation # Grant: OCE-1031288 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: King Abdullah University of Science and Technology # Grant: USA 00002, KSA 00011 #--------------------------------------- # Site_Information # Site_Name: Maghabiyah, Red Sea # Location: Indian Ocean # Northernmost_Latitude: 18.27 # Southernmost_Latitude: 18.27 # Easternmost_Longitude: 40.74 # Westernmost_Longitude: 40.74 # Elevation_m: #--------------------------------------- # Data_Collection # Collection_Name: MB_Murty2018 # First_Year: 2004 # Last_Year: 2009 # Time_Unit: year Common Era # Core_Length_m: # Parameter_Keywords: trace metals # Notes: SC = Semicolon; P = Popponesset; AG = Abu Galawa; CG = Coral Gardens; MB = Maghabiyah #--------------------------------------- # Chronology_Information # Chronology: #--------------------------------------- # Variables # PaST_Thesaurus_Download_Resource: https://www.ncdc.noaa.gov/paleo/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # ## Year_MB age,,,year Common Era,,corals and sclerosponges,,,N, ## Sr/Ca_MB strontium/calcium ,Porites lutea,,millimole per mole,,corals and sclerosponges,,inductively-coupled plasma atomic emission spectroscopy,N, #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: NA Year_MB Sr/Ca_MB 2004.69 8.858010533 2004.73 8.870693624 2004.77 8.873690444 2004.81 8.892121695 2004.85 8.887025079 2004.88 8.89523188 2004.96 8.958104935 2005.00 8.983768331 2005.12 9.062749559 2005.15 9.063867187 2005.19 9.020942803 2005.23 8.996167898 2005.27 8.981913207 2005.31 8.97961411 2005.35 8.943756023 2005.38 8.896634857 2005.42 8.917172399 2005.54 8.892190151 2005.62 8.873467637 2005.69 8.807644672 2005.73 8.873083799 2005.77 8.869640325 2005.81 8.878599885 2005.85 8.864686804 2005.88 8.845024259 2005.92 8.851878192 2005.96 8.927902297 2006.00 8.965494638 2006.08 9.039448309 2006.12 9.061467419 2006.15 9.040806382 2006.19 9.010388374 2006.23 8.987152378 2006.31 8.919340082 2006.35 8.937807382 2006.38 8.91719832 2006.42 8.903552291 2006.46 8.925033624 2006.50 8.877974418 2006.54 8.902283774 2006.58 8.892965387 2006.62 8.878946577 2006.65 8.874319608 2006.73 8.845581376 2006.77 8.842852166 2006.81 8.820856722 2006.88 8.86748844 2006.92 8.939393902 2007.04 9.039557369 2007.15 9.003517774 2007.19 9.008743827 2007.23 9.000451363 2007.27 8.983750743 2007.31 8.900018548 2007.35 8.831817932 2007.38 8.880141164 2007.42 8.90076961 2007.46 8.883276656 2007.50 8.881995908 2007.58 8.851852911 2007.62 8.844335816 2007.65 8.869367098 2007.69 8.872665857 2007.77 8.817016896 2007.81 8.846196003 2007.85 8.754788441 2007.88 8.784052324 2007.92 8.869653928 2007.96 8.913104157 2008.00 8.929664654 2008.04 8.938858087 2008.08 8.981991373 2008.15 9.030731843 2008.19 9.060161852 2008.23 9.047187869 2008.27 9.022255272 2008.31 8.915621222 2008.35 8.930342875 2008.38 8.921557591 2008.46 8.860444203 2008.50 8.858121633 2008.62 8.852650094 2008.65 8.88783689 2008.69 8.838243617 2008.73 8.767474125 2008.77 8.80525715 2008.81 8.856457801 2008.85 8.848677285 2008.92 8.817822476 2008.96 8.913722324 2009.04 8.958810481 2009.08 8.988567317 2009.12 8.978708673 2009.15 9.034961531 2009.19 9.039648662 2009.23 8.98925436 2009.27 8.960653113 2009.31 8.953345812 2009.35 8.923905832 2009.38 8.894460449 2009.42 8.86800724 2009.50 8.834844982 2009.54 8.913171441 2009.58 8.874551037 2009.62 8.802472245 2009.65 8.802668308 2009.69 8.788522599 2009.73 8.773693374 2009.77 8.732411026 2009.81 8.802295352 2009.85 8.846763124